Table 1 Sociodemographic characteristics of participants

Age

15.8 ± 1.7

15.9 ± 1.8

15.9 ± 1.7

BMI

20.8 ± 3.6

20.2 ± 2.9

20.5 ± 3.3

BMI Group

Wasting

92(12.2)

70(8.7)

162(10.4)

Normal weight

491(65.0)

626(77.8)

1117(71.6)

Overweight

122(16.2)

84(10.4)

206(13.2)

Obesity

50(6.6)

25(3.1)

75(4.8)

Grade

Grade 7

134(17.7)

111(13.8)

245(15.7)

Grade 8

113(15.0)

143(17.8)

256(16.4)

Grade 9

177(23.4)

173(21.5)

350(22.4)

Grade 10

128(17.0)

98(12.2)

226(14.5)

Grade 11

100(13.2)

137(17.0)

237(15.2)

Grade 12

103(13.6)

143(17.8)

246(15.8)

Only-Child Status

91(12.1)

51(6.3)

142(9.1)

Household Registration Status

Urban

138(18.3)

136(16.9)

274(17.6)

Rural

617(81.7)

669(83.1)

1286(82.4)

Type of School Attended

Public

480(63.6)

567(70.4)

1047(67.1)

Private

275(36.4)

238(29.6)

513(32.9)

Academic Performance

Top ten

182(24.1)

197(24.5)

379(24.3)

Average

411(54.4)

448(55.7)

859(55.1)

Below average

162(21.5)

160(19.9)

322(20.6)

Class Cadres

156(20.7)

154(19.1)

310(19.9)

Physical health status

Healthy

502(66.5)

471(58.5)

973(62.4)

Occasionally ill

224(29.7)

269(33.4)

493(31.6)

Frequently ill

29(3.8)

65(8.1)

94(6.0)

Family Financial Situation

Affluent

18(2.4)

34(4.2)

52(3.3)

Moderate

578(76.6)

638(79.3)

1216(77.9)

Low-income

120(15.9)

116(14.4)

236(15.1)

Impoverished

39(5.2)

17(2.1)

56(3.6)

Father’s Education Level

Primary school

177 (23.4)

158 (19.6)

335 (21.5)

Junior high school

402 (53.2)

495 (61.5)

897 (57.5)

High school

105 (13.9)

98 (12.2)

203 (13.0)

Junior college and above

71 (9.4)

54 (6.7)

125 (8.0)

Mother’s Education Level

Primary school

221 (29.3)

209 (26.0)

430 (27.6)

Junior high school

400 (53.0)

461 (57.3)

861 (55.2)

High school

77 (10.2)

87 (10.8)

164 (10.5)

Junior college and above

57 (7.5)

48 (6.0)

105 (6.8)